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Star Flare in Andromeda

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Carlesa25
Star Flare in Andromeda

It is the Constellation of Andromeda the Galaxy barely noticeable in the central area is NGC 7640, the star position in question is: AR: 23h 21´ 58.283 "- Dec: +40º 57´ 53"

Date: 20190729-01h14m56s778ms. North up.   

GSO-RC 6" f/9-Camera Canon 1100D+CLS-CCD modded for full spectrum 1 expo.300seg.

I was refocusing the field since the focusing temperature compensation system had made me a failed adjustment and between 300 seconds of taking and taking this possible phenomenonStar Flare ?

JBD
JBD's picture
Star Flare in Andromeda

Tonight, despite a sky not so clear, I tried some pictures...
JBD

File upload: 
SPK
SPK's picture
GSC 03234-00823 = CSS_J232158.2+405752

This star is GSC 03234-00823:
Vmag. 13.49, Bmag. 14.22 (APASS); coordinates RA 23hm21 58.213s, DE +40°57'52.06" (epoch and equinox J2000.0), parallax 1.9186 ± 0.0178 mas, distance 513.5 ± 4.8 pc (Gaia DR2).

CRTS light curve (CSS_J232158.2+405752):
http://nunuku.caltech.edu/cgi-bin/getcssconedb_release_img.cgi?RA=350.49...

Complete ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) light curve:
https://asas-sn.osu.edu/light_curves/45fa680d-e71f-4e05-8d40-08f2f246c19a

Regards,
Patrick

JBD
JBD's picture
GSC 03234-00823 = CSS_J232158.2+405752

Thank Patrick, It is really impressive ... can we have more information?
I can not find it on vsx.
What type of variable?
I notice that its frequency varies a lot ...
Best regards,
JBD

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